Gemstone Hardness Scale Explained: Complete Mohs Scale Guide

⚖️ Gemstone Hardness Scale Guide

Complete Mohs hardness scale explained. Learn which gemstones are durable for jewelry. Expert guide from Queensland specialists.

💎 What You'll Learn

  • ✓ Mohs hardness scale 1-10 explained
  • ✓ Which gemstones are durable for rings
  • ✓ Hardness vs toughness difference
  • ✓ How to protect softer gemstones
  • ✓ Best stones for daily wear jewelry

⚖️ Mohs Hardness Scale

Hardness Gemstone Jewelry Use
10 Diamond Excellent for all jewelry
9 Sapphire, Ruby Excellent for all jewelry
8 Topaz Very good for rings
7.5-8 Aquamarine, Emerald Good for rings with care
7-7.5 Garnet Good for rings with care
7 Amethyst, Quartz Suitable with care
6-6.5 Moonstone, Opal Earrings, pendants only
5-6 Turquoise Occasional wear only

💍 Hardness for Jewelry Types

  • Engagement Rings (daily wear): 7.5+ recommended (sapphire, ruby, aquamarine)
  • Fashion Rings: 7+ acceptable (amethyst, garnet, topaz)
  • Earrings: Any hardness (no abrasion risk)
  • Pendants: Any hardness (protected position)
  • Bracelets: 7.5+ recommended (high impact risk)

💡 Pro Tip: Browse our engagement ring gemstones - all hardness 7.5+.

❓ Hardness Questions

What is the Mohs hardness scale?

The Mohs scale measures scratch resistance from 1 (softest - talc) to 10 (hardest - diamond). It helps determine which gemstones are durable enough for different jewelry types.

What hardness is safe for engagement rings?

For daily wear engagement rings, choose hardness 7.5 or higher. Sapphire (9), ruby (9), and aquamarine (7.5-8) are excellent choices. Amethyst (7) can work with careful wear.

Is hardness the same as toughness?

No! Hardness is scratch resistance. Toughness is resistance to breaking or chipping. Diamond is hardest but can chip. Jade is softer but very tough.

Can I wear amethyst in a ring?

Yes, amethyst (hardness 7) is suitable for rings with proper care. Remove during sports, heavy work, or activities that may cause impact. Perfect for fashion rings and occasional wear.

Why is sapphire good for engagement rings?

Sapphire has hardness 9 (second only to diamond at 10), making it extremely durable for daily wear. It resists scratching and is perfect for engagement rings. Browse our Queensland sapphires.

💎 Shop Durable Gemstones

Browse our collection of hardness 7+ gemstones perfect for all jewelry.

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